Rotatable telescopic dust removal air suction hood

Abstract

The utility model discloses a rotatable telescopic dust removal air suction hood, and belongs to the technical field of air suction hoods. Comprising a dust hood body, a first connector is arranged at the top end of the dust hood body, the first connector is sleeved with a second connector, a mounting pipe is arranged at the top end of the second connector, a rotating block is arranged at the top end of the first connector, and multiple sets of limiting insertion rods are annularly arranged at the bottom end of the rotating block; and a plurality of groups of limiting slots are annularly formed in the top end of the interior of the second connector. According to the dust collection cover, the dust collection cover body can be lifted to drive the rotating block and the limiting insertion rod to move, so that the limiting insertion rod is separated from the interior of the limiting insertion groove, the dust collection cover body can rotate, then the dust collection cover body is loosened, and the supporting spring drives the rotating block to restore; and the limiting inserting rods are embedded into the limiting inserting grooves for limiting and fixing, and then the dust collection cover body can work conveniently after rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of air suction hoods, in particular to a rotatable and telescopic dust-removing air suction hood. Background Art

[0002] A dust hood is usually used in conjunction with a vacuum cleaner. The dust hood is usually installed at the end of the vacuum cleaner to expand the range of dust collection and improve the dust collection effect.

[0003] However, most of the existing connections between the dust hood and the vacuum cleaner are connected through a hose, and the end of the hose is fixedly connected to the dust hood, which makes the dust hood unable to rotate, and the dust hood cannot adapt to some narrow spaces, making work more inconvenient. For this reason, we propose a rotatable and telescopic dust removal hood to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art involved in the background technology and to propose a rotatable and telescopic dust removal and suction hood.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rotatable and telescopic dust removal hood comprises a hood body, a first connector is provided at the top of the hood body, a second connector is sleeved on the outside of the first connector, a mounting tube is provided at the top of the second connector, a rotating block is provided at the top of the first connector, a plurality of limit rods are provided in an annular shape at the bottom end of the rotating block, a plurality of limit slots are provided in an annular shape at the top end of the inner portion of the second connector, and the limit rods extend into the interior of the limit slots;

[0007] The dust hood body can be lifted up, so that the dust hood body drives the first connecting head and the rotating block to move, so that the rotating block drives the limiting rod to disengage from the inside of the limiting slot. At this time, the dust hood body can be rotated at an angle, making it convenient to work in different narrow spaces.

[0008] Preferably, a support spring is provided at the top of the rotating block, and the other end of the support spring is fixedly connected to the top of the inner wall of the second connector;

[0009] The support spring can support the rotating block, and then when the dust hood body is loosened, the support spring can drive the limiting rod through the rotating block to embed into the inside of the limiting slot for limiting. At this time, the angle of the dust hood body can be limited, which facilitates the operation of the dust hood body.

[0010] Preferably, the outside of the installation tube is sleeved with a sleeve, and the sleeve is slidably and telescopically connected to the installation tube;

[0011] The installation tube and the sleeve can be extended and retracted, thereby increasing the scope of operation and making the working effect of the dust hood main body better.

[0012] Preferably, a sealing gasket is provided at the top end of the mounting tube, and the outer wall of the sealing gasket is pressed and fitted with the inner wall of the sleeve on all sides;

[0013] The connection between the installation pipe and the sleeve can be sealed to avoid gas leakage, thereby ensuring that the dust collection effect of the dust collection hood body is not affected.

[0014] Preferably, a mounting groove is provided at the bottom end of the inner wall of the sleeve, a rubber ring is provided inside the mounting groove, and the rubber ring is sleeved on the outside of the mounting tube;

[0015] After the sleeve and the mounting tube are extended or retracted, the rubber ring increases the friction between the mounting tube and the sleeve, thereby improving the stability between the mounting tube and the sleeve after extension or retraction.

[0016] Preferably, the inner wall of the rubber ring is provided with a limiting hole groove, and the limiting hole groove fits in with the outer wall of the mounting tube;

[0017] The limiting hole groove can be squeezed against the outer wall of the mounting tube, so that the limiting hole groove is adsorbed on the outside of the mounting tube after being formed, further improving the connection stability between the mounting tube and the sleeve, while reducing the gap between the mounting tube and the sleeve, further avoiding gas leakage.

[0018] Preferably, a ventilation groove is provided inside the rubber ring, an air pump body is provided on the side of the sleeve, a connecting pipe is provided at the output end of the air pump body, and the end of the connecting pipe passes through the sleeve and extends to the interior of the ventilation groove;

[0019] The air pump body can be used to transport gas to the inside of the ventilation groove through the connecting pipe, so that the rubber ring is deformed and expanded, and then the rubber ring drives the limiting hole groove to fit more closely with the outer wall of the mounting tube, further improving the stability of the connection between the mounting tube and the sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model can lift the dust hood body so that the dust hood body drives the rotating block and the limit rod to move, so that the limit rod is disengaged from the inside of the limit slot, and then the dust hood body can be rotated. Then, the dust hood body is loosened, so that the support spring drives the rotating block to recover, and the limit rod is embedded in the inside of the limit slot for limit fixation, so that the dust hood body can be rotated to facilitate work.

[0022] 2. The utility model can make the installation tube and the sleeve expand and contract, thereby increasing the construction range of the dust hood body. Afterwards, when the installation tube and the sleeve expand and contract, the gas can be transported to the inside of the ventilation groove through the connecting pipeline by the air pump body, so that the ventilation groove expands, and then the rubber ring drives the limiting hole groove to fit the outer wall of the installation tube, and then adsorbed on the outside of the installation tube, which can fix the position between the installation tube and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a rotatable and telescopic dust removal and air suction hood proposed by the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of a front cross-sectional structure;

[0025] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 for Figure 2 Schematic diagram of the front cross-sectional structure of the middle rubber ring.

[0027] In the figure: 1. Dust hood body; 2. First connector; 3. Second connector; 4. Mounting tube; 5. Sleeve; 6. Rotating block; 7. Limiting rod; 8. Limiting slot; 9. Support spring; 10. Sealing gasket; 11. Mounting slot; 12. Rubber ring; 13. Ventilation slot; 14. Air pump body; 15. Connecting pipe; 16. Limiting hole slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-4The rotatable and telescopic dust removal hood shown in the figure is provided with a first connecting head 2 at the top of the dust removal hood body 1, and then a second connecting head 3 is sleeved on the outside of the first connecting head 2, and a mounting tube 4 is provided on the top of the second connecting head 3, and at the same time, a rotating block 6 is provided on the top of the first connecting head 2, so that a plurality of groups of limiting rods 7 are annularly provided at the bottom end of the rotating block 6, and then a plurality of groups of limiting slots 8 are annularly opened at the inner top end of the second connecting head 3, and the limiting rods 7 extend to the inside of the limiting slots 8, and at the same time, a supporting spring 9 is provided on the top of the rotating block 6, so that the other end of the supporting spring 9 is fixedly connected to the top of the inner wall of the second connecting head 3, and a sleeve 5 is sleeved on the outside of the mounting tube 4, and then the sleeve 5 is slidably and telescopically connected to the mounting tube 4, and at the same time, a sealing gasket 10 is provided at the top of the mounting tube 4, and the outer wall of the sealing gasket 10 is squeezed and fitted with the inner wall of the sleeve 5 on all sides.

[0030] For a detailed description of the rubber ring 12 in this embodiment, please refer to Figure 2 and Figure 4 A mounting groove 11 is provided at the bottom end of the inner wall of the sleeve 5, and then a rubber ring 12 is provided inside the mounting groove 11, and at the same time, the rubber ring 12 is sleeved on the outside of the mounting tube 4, and a limiting hole groove 16 is provided on the inner wall of the rubber ring 12, and then the limiting hole groove 16 and the outer wall of the mounting tube 4 fit together, and a ventilation groove 13 is provided inside the rubber ring 12, and at the same time, an air pump body 14 is provided on the side of the sleeve 5, so that a connecting pipe 15 is provided at the output end of the air pump body 14, and then the end of the connecting pipe 15 passes through the sleeve 5 and extends to the inside of the ventilation groove 13.

[0031] Working principle: When the present invention is in use, the dust hood body 1 can be pressed on the ground or the dust hood body 1 can be manually lifted, so that the dust hood body 1 drives the first connecting head 2 and the rotating block 6 to move, thereby causing the rotating block 6 to drive the limiting rod 7 to disengage from the inside of the limiting slot 8. At this time, the dust hood body 1 can be rotated. After the angle adjustment is completed, the dust hood body 1 is released so that the support spring 9 supports the rotating block 6, so that the rotating block 6 drives the limiting rod 7 to be embedded in the inside of the limiting slot 8 for limiting and fixing, thereby facilitating the normal movement of the dust hood body 1.

[0032] Then the sleeve 5 can be pulled to expand and contract the sleeve 5 and the mounting tube 4, and the sealing gasket 10 can prevent gas leakage. At the same time, after the adjustment between the sleeve 5 and the mounting tube 4 is completed, the gas can be injected into the interior of the vent groove 13 through the connecting pipe 15 through the air pump body 14, thereby expanding the rubber ring 12, and then the rubber ring 12 drives the limiting hole groove 16 to be adsorbed on the outside of the mounting tube 4, so that the mounting tube 4 and the sleeve 5 can be fixed, and the sealing between the mounting tube 4 and the sleeve 5 can be further increased.

[0033] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated on.

[0034] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

[0035] In the present utility model, unless otherwise specified, the directional words contained in the terms "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the directions of the terms in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

Claims

1. A rotatable and telescopic dust removal hood, comprising a hood body (1), characterized in that: A first connector (2) is provided at the top of the dust hood body (1), a second connector (3) is sleeved on the outside of the first connector (2), a mounting tube (4) is provided at the top of the second connector (3), a rotating block (6) is provided at the top of the first connector (2), a plurality of limit rods (7) are provided in an annular shape at the bottom end of the rotating block (6), a plurality of limit slots (8) are provided in an annular shape at the inner top end of the second connector (3), and the limit rods (7) extend to the inside of the limit slots (8).

2. The rotatable and telescopic dust removal hood according to claim 1, characterized in that: A support spring (9) is provided at the top end of the rotating block (6), and the other end of the support spring (9) is fixedly connected to the top end of the inner wall of the second connector (3).

3. The rotatable and telescopic dust removal hood according to claim 1, characterized in that: The outside of the installation tube (4) is sleeved with a sleeve (5), and the sleeve (5) is slidably and telescopically connected to the installation tube (4).

4. The rotatable and telescopic dust removal hood according to claim 3, characterized in that: A sealing gasket (10) is provided at the top end of the installation tube (4), and the outer wall of the sealing gasket (10) is pressed and fitted with the inner wall of the sleeve (5) on all sides.

5. The rotatable and telescopic dust removal hood according to claim 3, characterized in that: The bottom end of the inner wall of the sleeve (5) is provided with a mounting groove (11), a rubber ring (12) is arranged inside the mounting groove (11), and the rubber ring (12) is sleeved on the outside of the mounting tube (4).

6. The rotatable and telescopic dust removal hood according to claim 5, characterized in that: The inner wall of the rubber ring (12) is provided with a limiting hole groove (16), and the limiting hole groove (16) and the outer wall of the mounting tube (4) fit each other closely.

7. The rotatable and telescopic dust removal hood according to claim 6, characterized in that: A ventilation groove (13) is provided inside the rubber ring (12); an air pump body (14) is provided on the side of the sleeve (5); a connecting pipe (15) is provided at the output end of the air pump body (14); and an end of the connecting pipe (15) passes through the sleeve (5) and extends to the inside of the ventilation groove (13).

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